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C941J-4P
Cisco 941 Series ISR model
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C941J-4P is a modular enterprise router engineered for high-performance network environments, featuring a robust architecture that delivers advanced VPN security, integrated voice and video services, and reliable redundancy. Designed with dual power options and dual WAN interfaces, this router ensures continuous connectivity and optimal throughput, making it a versatile solution for enterprise applications that require secure, resilient, and scalable network performance.
C941J-4P offers flexible LAN interfaces, built-in firewall and intrusion prevention capabilities, and seamless remote management via SSH, HTTPS, and SNMP. Its modular design and integrated services make it ideal for diverse use cases, from mission-critical enterprise deployments to secure branches and remote offices, where throughput, redundancy, and high availability are essential.
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| C941J-4P |  C927-4P |  C921J-4P |  C927-4PM |  C921-4PLTEAS | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Fixed | Modular | Modular |
| Broadband | Fiber Optic / DSL | N/A | N/A | Fiber Optic / DSL | LTE |
| Built-in Security Features | Firewall, Intrusion Prevention | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection |
| Compliance Standards | FCC, CE, RoHS | FCC / CE | FCC, CE, RoHS | FCC / CE / RoHS | FCC, CE, RoHS |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 15 inches | 12.5 inches | 16 inches | 15 inches | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | CE Compliant | N/A |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | N/A | SFP+ | NIM | NIM / SFP+ | NIM |
| Features | VPN, Firewall, Integrated Services, Redundancy | VPN / Firewall / IPv6 Compatible | VPN, IPv6 Compatible, Firewall | VPN / Firewall / QoS / High Availability / Redundancy | VPN, IPv6 Compatible, Firewall, Redundancy |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 512 MB | 256 MB | 256 MB | 512 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount / Chassis | Rack-mount |
| Height | 1.75 inches | 1.7 inches | 2 inches | 1.75 inches | N/A |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice, Video | Voice / WAN Optimization | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice, Video |
| Interface Ports | RJ-45, SFP | RJ-45 / SFP | RJ-45, SFP | RJ-45 / SFP | RJ-45, SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 1 GB | 2 GB | 2 GB | 4 GB | 2 GB |
| Modular Slots Available | N/A | 1 Slot | 1 Slot | 2 Slots | 3+ Slots |
| Network Protocols | IPv4, IPv6 | IPv4, IPv6 | IPv4, IPv6 | IPv4 / IPv6 | IPv4, IPv6, MPLS |
| Power | 65 Watt | 65 Watt | 90 Watt | 150W | 50 Watt |
| Power Source | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | Redundant AC/DC Power Supply |
| Product Name | C941J-4P | C927-4P Enterprise Router | C921J-4P Enterprise Router | Cisco C927-4PM | C921-4PLTEAS |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Integrated Services Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH, HTTPS, SNMP | SNMP / Telnet / SSH / HTTP / HTTPS | SNMP, SSH, Telnet, HTTPS | SNMP / CLI / Web GUI | CLI, SNMP, WebUI |
| Routing Protocols | OSPF / BGP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / Static Routing |
| Safety | N/A | N/A | N/A | UL Listed | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | Yes | Yes | No | Yes | Yes |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 1 Gbps | 1 Gbps | 1 Gbps | 2.5 Gbps | 1 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise / Small Business / Industrial | Enterprise |
| VPN Support | IPSec / SSL VPN | IPSec / SSL VPN / DMVPN | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN |
| WAN Configuration | Dual WAN | Dual WAN | WAN | Dual WAN | Dual WAN |
| WAN Ports | 4 WAN | 2 WAN | 1 WAN | 2 WAN | 1 WAN (Fixed) / 1 LTE |
| Weight | 6 lbs | 10 lbs | 15 lbs | 12 lbs | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 17 inches | 17.5 inches | 18 inches | 17 inches | N/A |
| Wireless Support | No | No | No | No | No |
The 941J is an exceptional ISR for the Japanese market. Fast Gigabit speeds and superior security. It has been incredibly reliable for our regional offices.
Consistent and high-performing. This Japan-specific model handles our high-speed fiber links with professional ease. Stability is 100% since installation. Very satisfied.
Precise and efficient. The 941J series offers robust connectivity and easy management. It is a vital part of our high-performance network in Japan.
Steady and dependable. This router provides the secure and fast Gigabit Ethernet links our staff requires. Excellent build quality and professional-grade reliability.
Clever design and reliable performance. This ISR model is perfect for the unique requirements of the Japanese market. High-availability and very well-engineered hardware.
The Cisco 941 Series ISR (C941J-4P) is a fixed-configuration integrated services router delivering high-performance routing, enterprise-grade security, and advanced services for small to midsize branch deployments.
It offers up to 35 Mbps aggregate throughput, four Gigabit Ethernet LAN ports with PoE+, dual onboard GE WAN ports, integrated firewall and IPS, and optional Wi-Fi and LTE modules.
The C941J-4P supports up to 35 Mbps of secure routing, VPN encryption, and advanced services throughput under typical small branch office loads.
The router provides four Gigabit Ethernet LAN ports with PoE+, two Gigabit Ethernet WAN ports, and a USB management port for easy administration.
Yes, all four LAN ports deliver PoE+ (up to 30 W per port), enabling you to power IP phones, wireless access points, and cameras directly from the router.
It integrates a stateful firewall, intrusion prevention system (IPS), URL filtering, and hardware-accelerated encryption to safeguard branch networks against threats.
Yes, the C941J-4P supports up to 50 IPsec VPN tunnels with hardware-accelerated encryption for secure site-to-site and remote-access connectivity.
The C941J-4P supports Cisco SD-WAN for policy-based path selection, centralized control, and optimized cloud connectivity across multiple WAN links.
Management options include Cisco IOS XE CLI, Cisco DNA Center, and Cisco Meraki Dashboard for centralized configuration, monitoring, and automation.
Licenses are modular—Network Essentials, Network Advantage, and Security—allowing you to scale routing, security, and application features as needed.
Ideal for small branch offices, retail outlets, and distributed sites requiring integrated routing, security, PoE, and optional wireless in a compact footprint.
It complies with FCC Class B, CE, UL/CB safety standards, operates between 0 °C to 40 °C, and supports 10%–85% relative humidity non-condensing.
It offers redundant power options, stateful failover, and hot-swappable modules to minimize downtime in critical branch environments.
Compared to non-PoE variants, the C941J-4P adds four PoE+ LAN ports, higher integrated security throughput, and expanded service module support.
Cisco provides a limited lifetime hardware warranty, one-year software support, and optional SMART Net Service for 24/7 access to updates and technical assistance.
Firmware upgrades use Cisco IOS XE images via USB, TFTP, or Cisco DNA Center, following a validated upgrade path to ensure uninterrupted services.